Sonny Bill Williams (Gallo Images)
Cape Town - Rugby union, rugby league, sevens and boxing star, Sonny Bill Williams, has posted a picture to Twitter, posing alongside Spain's Rafael Nadal.
Williams, who will represent New Zealand in the Sevens at the Rio de Janeiro Olympics, was all smiles as he bumped into the 14-time Grand Slam champion.
New Zealand, Fiji and South Africa are expected to fight out the medals in the Sevens.
Nadal has been seeded third - behind Novak Djokovic and Andy Murray - in the men's tennis singles.